> From what I can guess, the teacher in question is referring to a type > of bench of which we have a couple examples left here, but are no longer > available that I’m aware of. They have a hard, flat, seat that is > permanently tilted forward to encourage a straight spine when you sit, a > vestigial looking little back rest, and adjust up or down by squeezing a > pair of sprung brackets together that expand into notches when released > along a vertical bar in the center of the back. Is that forward pitch intentional, or just the result of putting weight on a poorly engineered cantilever? >They are ugly, Supremely, as well as bloody uncomfortable and impossible for me to sit on to tune. As much as I hate tuning in a folding chair, I greatly prefer them to these "benches". Just say no. How about just fitting cranks to the existing bench instead of hand knobs to speed up the adjustment process? One on each side, 180° apart, and and it's like pedaling a trike by hand. Ron N
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